## Calculator Description

This online engineering calculator computes the actual bending and shear stresses and allowable bending and shear stresses for a wood sawn lumber member in bending and shear according to the National Design Specification for Wood Construction 2015 (NDS 2015)

## Calculator Link

## Input Parameters

Bending Moment, M

Maximum Shear Load, V

Member Width, b

Member Depth, d

Load Duration Factor, C_{d} – NDS 2015, Section 4.3.2

Wet Service Condition Factor, C_{m} – NDS 2015, Section 4.3.3

Temperature Factor, C_{t} – NDS 2015, Section 4.3.4

Beam Stability Factor, C_{L} – NDS 2015, Section 4.3.5

Size Factor, C_{F} – NDS 2015, Section 4.3.6

Flat Use Factor, C_{fu} – NDS 2015, Section 4.3.7

Incising Factor, C_{i} – NDS 2015, Section 4.3.8

Repetitive Member Factor, C_{r} – NDS 2015, Section 4.3.9

Reference Bending Stress, F_{b} – NDS Supplement 2015

Reference Shear Stress Parallel to grain, F_{v} – NDS Supplement 2015

## Output Parameters

Cross-Sectional Area, A

Section Modulus, S_{x}

Actual Bending Stress, f_{b}

Actual Maximum Shear Stress, f_{v}

Allowable Bending Stress, F_{b}‘ – NDS 2015 Table 4.3.1

Allowable Shear Stress Parallel to Grain, F_{v}‘ – NDS 2015 Table 4.3.1

Bending Check

Shear Check